569687-22-5 Bicyclo[3.1.0]hexane-2,6-dicarboxylic acid,2-amino-3-([1,1'-biphenyl]-2-ylmethoxy)-6-fluoro-, 6-ethyl2-(phenylmethyl) ester, monosodium salt, (1R,2R,3R,5R,6R)- 569687-23-6 Bicyclo[3.1.0]hexane-2,6-dicarboxylic acid,2-amino-3-([1,1'-biphenyl]-3-ylmethoxy)-6-fluoro-, 6-ethyl2-(phenylmethyl) ester, monosodium salt, (1R,2R,3R,5R,6R)-